Rent Shop Volunteer Join

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - October 06, 2008

From: Arvada, CO
Region: Rocky Mountain
Topic: Trees
Title: Viability of Cupressus macrocarpa in Arvada, Colorado
Answered by: Barbara Medford

QUESTION:

Can I plant lemon cypress in Arvada CO, zone 5, as landscaping plant? Can't find zone information.

ANSWER:

The Lemon Cypress is a cultivar called Goldcrest, or Golden Crest, of Cupressus macrocarpa (Monterey cypress). You can read more about the tree from Plants for a Future, Floridata.com and from the Florida Cooperative Extension Service. Here are some intructions for outdoor care from ShootGardening and you can find care instructions for indoor Cupressus macrocarpa at indoor-plant-care.com and from the TopiaryShop.  It is a native of California and tremendously susceptible to a canker that kills the tree, especially if it is planted away from cool, coastal breezes.

From the Plants for a Future website, above, we finally found the hardiness zone for this tree. It is only hardy to Zone 8, so it's doubtful it would have a chance in Zone 5. Furthermore, some of the references we saw said it was not recommended for planting, period, probably because it does have problems away from its natural habitat. It occurs naturally only in two groves in Monterey Bay on the central coast of California, and is nearly extinct in the wild. It is, however, being widely grown in warm temperate and subtropical regions worldwide. We don't much think that includes Arvada, Colorado. 

Pictures of Cupressus macrocarpa (Monterey cypress)

 

More Trees Questions

Trees & Shrubs for a NY Slope
July 03, 2012 - Our community has a large steep slope (100'high by at least 600' wide) that is sunny & dry. The builders planted "wild flower seeds" on the slope that is now just weeds. We would like to know what...
view the full question and answer

Scrub oaks dropping limbs in Lexington TX
August 23, 2009 - We live in the country between Elgin and Lexington. One of our "scrub" oaks is dropping large limbs. On examination, the limbs have green leaves and they do not appear to be rotted. Do you think ...
view the full question and answer

Plants for north side from Dale TX
February 10, 2012 - What native trees and bushes can I plant on the north side of house? Can I use corn meal( I NEED FIGHT A GRASS) in flowerbed and then plant native wildlife seeds(FLOWERS)?
view the full question and answer

Propagation of maple tree in Canada
July 08, 2008 - I have a gorgeous maple tree in my front lawn and I want to plant more like it. The tree gives off very few keys a year so I want to make sure this works. How do I go about planting a maple key?
view the full question and answer

Pruning live oak in Austin
April 28, 2012 - Hi, We recently purchased a house in South Austin and there is a huge Live Oak Tree about 6 feet from the back door (so so so love it!) The only real issues I have so far are: 1. Needing to trim a ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.